* Bears are large and heavy, and their bone structure and muscle arrangement are not designed for jumping. They might take a small hop or leap, but they don't have the powerful leg muscles and springy tendons necessary for jumping great distances.
* Elephants are even larger than bears, and their weight makes jumping impossible. They do have powerful legs that allow them to run and walk, but their size and weight restrict their movement.
If you're looking for animals that are known for their jumping abilities, think of animals like:
* Kangaroos
* Frogs
* Grasshoppers
* Gazelles
* Cheetahs